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| 2-elementige Einschränkung (A constraint that applies to two elements, such as two classes or two associations. The constraint is shown as a dashed arrow from one element to the other, labeled by the constraint string in braces ({ })) | |||
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2 : 11 短语, 8 学科 |
| 人工智能 | 4 |
| 信息技术 | 1 |
| 化学 | 1 |
| 医疗的 | 1 |
| 微软 | 1 |
| 替代性纠纷解决 | 1 |
| 运输 | 1 |
| 通讯 | 1 |